2. Features an asymmetric bidirectional sealing structure for piston sealing, offering compact dimensions with integrated oil reservoir functionality;
3. Integrated fixed cushions on both end covers minimize impact during directional changes;
4. Multiple rear cover configurations simplify installation and enhance mounting flexibility;
5. Crimped and wrapped assembly ensures robust connection between stainless steel barrel and end covers;
6. Precision-engineered stainless steel barrel provides exceptional strength and corrosion resistance;
7. MF series achieves shorter overall length than ISO6432 standard cylinders while maintaining identical bore/stroke specifications;
8. Comprehensive range of cylinder variants and mounting accessories available for customized solutions.
Category: Adjustable Cylinders | Brand: AirTAC | Series: MFJ Adjustable cylinders
AirTAC MFJ40X40-20S Adjustable Mini Cylinder Specifications
- Model: MFJ40X40-20S
- Type: Double-acting adjustable cushion mini cylinder
- Bore size: 40mm
- Stroke: 20mm (adjustable ±1mm)
- Operating pressure: 0.05–0.9 MPa
- Temperature range: -20℃ to 80℃
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Basic type (axial mounting)
- Port size: M5x0.8 (standard) / PT1/8 optional
- Material: Aluminum alloy barrel, SUS304 piston rod
- Seal material: NBR with grease retention design
- Weight: 380g ±5g
- Dimensions: 121mm(L) × 40mm(W) × 40mm(H)
- Piston speed: 50–700mm/s (lubricated)
- Protection rating: IP54 (standard seals)
Ultra-compact cylinder featuring dual adjustable pneumatic cushions for precise stroke control. The through-piston-rod design allows stable operation in confined spaces. Pre-lubricated with anti-creep grease for maintenance-free operation. Includes built-in magnet for position sensing compatibility.
- PCB handling robots in electronics assembly
- Precision clamping mechanisms in CNC tool changers
- Valve actuation in compact fluid control systems
- Medical device positioning stages
- Packaging machine product ejectors
| Property | Property Value |
|---|---|
| sku | MFJ40X40-20S |
| Adjustable Stroke | <20mm> |
| Mounting Type | Without Mounting Accessories |
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT1/4 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | <40mm> |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.







